Flowmaster - 40 Series - 3.00 Offset In / 3.00 Offset Out - Aggressive Sound Jam Nut - 3/8-24 in

Jam Nut - 3/8-24 in Right Hand Thread - Aluminum - Natural - Set of 10

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Emery Cloth - 1 in x 150 ft - Roll - 180 Grit - Each

Intercooler Pipe - BladeRunner - Aluminum - Black Powder Coat - Intercooler Cold Side - Diesel - GM Fullsize Truck 2011-16 - Each

Collector Gasket - Ultra-Seal - 0

Flowmaster - 40 Series - 3.00 Offset In / 3.00 Offset Out - Aggressive Sound Jam Nut - 3/8-24 inThe Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.